Automated testing is actually a kind of software testing. Previous testing work was completed by testing engineers manually executing test cases. Embedded systems have been widely used in real life, and the corresponding embedded software scale is also expanding day by day, but the requirements for its development cycle and product quality have not decreased at all. With the development of embedded system, we urgently need a testing system that can test and analyze the software of embedded system on-line in real time in the unit phase, integration phase, system phase and other phases of software development to ensure the quality and reliability of the software. This paper designs and implements an embedded system automation test platform based on infrastructure cloud. The platform is built on infrastructure cloud environment, which can make full use of hardware resources and reduce hardware costs.